Internal-combustion engine.



APPLICATION FILED AUG-I7, 19!].

Patented Oct. 1, 1918.

757/ Al a/4 ROCCO DELEWESE, 0F COLUMBUS, OHIO.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented @ct. 1, 1818.

Application filed August 1'7, 1917. Serial No. 186,792.

To all whom it may concern:

Be it known that I, Rocco DELEWESE, a citizen of the United States, residing at Columbus, in the ounty of Franklin and State of Ohio, have invented certain new and useful Improvements in Internal Combustion Engines, of which the following is a specification.

My present invention pertains to internal combustion engines and more particularly to means appurtenant to internal combustion engines for preparing fuel for consumption therein.

The general object of my said invention is to provide a simple, compact and inexpensive combination for utilizing to the best advantage the heat values, afforded by an engine in operation, in raising the temperature of the air commingled with hydrocarbon to form an explosive mixture, so that the comparatively inexpensive kerosene of commerce may be used as a fuel, in lieu of gasolene, for the efficient operation of the engine.

To the attainment of the foregoing the invention consists in the peculiar and advantageous instalment hereinafter described and definitely pointed out in my appended claims.

In the accompanying drawings which are hereby made a part hereof:

Figure 1 is a view showing so much of an internal combustion engine as is necessary to illustrate the application of my improved means; the said view including the engine cylinder in transverse section and my novel instalment in plan or elevation according to whether the cylinder is disposed vertically or horizontally.

Fig. 2 is a detail transverse section taken in the plane indicated by the line 22 of Fig. 1.

Similar numerals of reference desi corresponding parts in both views 0 drawings.

The engine cylinder 1 incloses the usual explosion chamber 2, and communicating with the said chamber 2 in the ordinary, well known manner is a carbureter 8 which per 86 may be of the usual type or of any other construction compatible with my purpose of my improvement.

Connected to the liquid fuel duct of the carbureter 3 is a conduit 4 with which are connected branch conduits 5 and 6, equipped with cut-01f valves 7 and designed to be ate the connected with a kerosene tank and a gasolene tank, respectively.

In communication with the explosion chamber 2 at a point diametrically opposite the carbureter connection or explosive-mixture inlet, or approximately so, is a lateral arm 8 on a jacket 8 of about the proportional transverse size illustrated. The said jacket 8 is preferably, though not necessarily, of cast iron, is closed at its ends, as indicated by 9 and 10, and is provided adjacent to its end 10 with a lateral exhaust outlet 11 which may be directly connected with the atmosphere or may be connected through a pipe as shown with a remote point of discharge, in the discretion of the party practisin my invention.

In furt 1GI2LI1CB of my invention, the jacket 8 is curved lengthwise through a considerable part of a circle, and throughout its length it is arranged in close proximity to the outer side of the wall of the cylinder 1, this in order to assure the jacket being exteriorly heated to a considerable extent by the1 heat radiated from the said cylinder wa 1.

Also in furtherance of myinvention a pipe 12 of about the proportional diameter illustrated and having a thin wall is carried longitudinally through the jacket 8 and beyond the ends 9 and 10 thereof. One of the extended ends of the said pipe 12 is open to the atmosphere, and the other extended end thereof is connected through a pipe 13 with the interior of the carbureter 3.

WVith the further statement that the carbureter 3 is connected with the explosive mixture inlet port of the combustion chamber 2, and the jacket arm 8 is connected with the exhaust port of said chamber, the operation and the practical advantages of my novel instalment will be fully understood from the following:

In starting the engine the valve in conduit 5 is closed and the valve in conduit 6 is opened, and the engine is operated with gasolene as a fuel for a short period, say five minutes or sufficiently long to highly heat the cylinder 1 and the jacket 8, and give rise to the passage of a considerable volume of highly heated products of combustion through the jacket and the consequent high heating of the thin wall pipe 12. The valve in conduit 6 is then closed and the valve in conduit 5 is opened so as to establish the supply of kerosene instead of gasolene to the hydrocarbon fuel duct of the earbureter 3, whereupon, by reason of the highly heated jacket 8 and pipe 12 and the heat values given off by the products of combustion passing through the acket and sur rounding the pipe 12, the air will, be considerably expanded en route to the carbureter with the result that when such expanded air is commingled with the kerosene an explosive-mixture is formed equal in eficiency to that produced by the mixture of atmospheric air with gasolene, and thereafter the engine is operated by the combustion of the mixture formed by highly heated and expanded air commingled with kerosene.

The practical advantages 01 my novel instalment will be fully appreciated when it is stated that in actual work I have developed as much power with an engine equipped with my improvement and using kerosene as a fuel as can be developed with an ordinary engine using gasolene as a fuel, and the economy of an engine carrying my improvement will be apparent when the fact is cited that the market price per gallon of kerosene is less than one-half of that of gasolene.

I have entered into a detailed and explicit description of the construction and relative arrangement of the parts embraced in the present and preferred OHlbOClllHQlll] of my invention in order to impart a full, clear and exact understanding of the said embodiment. I do not desire, however, to be understood as confining myself to the said specific construction and relative arrangement of parts since it is to be understood that in the future practice of the invention such changes or modifications in the form, arrangement and proportion of parts may be made as are fairly comprehended by my invention as defined in my appended claims.

Having described my invention, what I claim and desire to secure by Letters Patent, is:

1. The combination in an internal combustion engine, of a piston cylinder containing an explosion chamber, a carbureter connected with the explosive mixture inlet port of said chamber and having a fuel duct adapted to be alternately connected with a gasolene source of supply and a kerosene source of supply, a. cast-metal jacket closed at its ends and: having an arm adjacent to one of its ends in communication with the exhaust port oi the explosion chamber; said jacket being curved lengthwise through a considerable part of a circle and arranged throughout its length in close proximity to the exterior of the cylinder wall, and a thin-wall pipe arranged lengthwise in the j acket and extended through the closed ends thereof and open at one end to the atmosphere and having its opposite end connected with the carbureter.

2. The combination with the piston cylinder of an internal combustion engine, and a carbureter connected with the explosivemixture inlet port thereof; of a jacket curved lengthwise through a. considerable part of a circle and arranged throughout its length in close proximity to the exterior of the wall of the cylinder and connected adjacent to one of its ends with the exhaust port of the cylinder and having an exhaust outlet adjacent to its opposite end, and a thin wall conduit extending lengthwise through the jacket and open atone end to the atmosphere and having its opposite end connected with the interior of the carbureter.

In testimony whereof I affix my signature in presence of two witnesses.

ROCCO DELEVWSE. lVitnesses:

FRED M. MGSWEENEY, Jno. D. VIcroR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

